- Oakhurst to Sir Stamford At Circular Quay
- Oakville to Sir Stamford At Circular Quay
- Oatlands to Sir Stamford At Circular Quay
- Oatley to Sir Stamford At Circular Quay
- Old Guildford to Sir Stamford At Circular Quay
- Old Toongabbie to Sir Stamford At Circular Quay
- Oran Park to Sir Stamford At Circular Quay
- Orchard Hills to Sir Stamford At Circular Quay
- Oxford Falls to Sir Stamford At Circular Quay
- Oxley Park to Sir Stamford At Circular Quay
- Oyster Bay to Sir Stamford At Circular Quay
- Sydney Airport to Sir Stamford At Circular Quay
- Sir Stamford At Circular Quay to Oakhurst
- Sir Stamford At Circular Quay to Oakville
- Sir Stamford At Circular Quay to Oatlands
- Sir Stamford At Circular Quay to Oatley
- Sir Stamford At Circular Quay to Old Guildford
- Sir Stamford At Circular Quay to Old Toongabbie
- Sir Stamford At Circular Quay to Oran Park
- Sir Stamford At Circular Quay to Orchard Hills
- Sir Stamford At Circular Quay to Oxford Falls
- Sir Stamford At Circular Quay to Oxley Park
- Sir Stamford At Circular Quay to Oyster Bay
- Sir Stamford At Circular Quay to Sydney Airport